Desktop centrifuge



FIG. 1 is a top perspective view of the design for a desktop centrifuge according to the present disclosure;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a right side elevational view thereof; and,

FIG. 8 is a top perspective view with the lid open. 

CLAIM The ornamental design for a desktop centrifuge, as shown and described. 